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3 years ago

How to write 1/2 with a denominator of 10

Mathematics

2 answers:

babymother [125]3 years ago

6 0

5/10 is equal to 1/2 the denominator is the bottom number of a fraction.

Mashcka [7]3 years ago

5 0

Answer:

The answer is 5/10 multiply 1/2 by 5

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Rationalise the denominator of (12)/(\sqrt(10)+\sqrt(7)+\sqrt(3))

jasenka [17]

Answer:

$\frac{12}{\sqrt{10} +\sqrt{7} +\sqrt{3} }=\frac{6\sqrt{147} +6\sqrt{63}-6\sqrt{210} }{21 }$

Step-by-step explanation:

$\frac{12}{\sqrt{10} +\sqrt{7} +\sqrt{3} }$

$=\frac{12\left( \sqrt{10} -\left( \sqrt{7} +\sqrt{3} \right) \right) }{(\sqrt{10}+(\sqrt{7} +\sqrt{3 } ))( \sqrt{10} -( \sqrt{7} +\sqrt{3}))}$

$=\frac{12\left( \sqrt{10} -\sqrt{7} -\sqrt{3} \right) }{\sqrt{10^2} -(\sqrt{7} +\sqrt{3})^2}$

$\frac{12\left( \sqrt{10} -\sqrt{7} -\sqrt{3} \right) }{10-(10+2\sqrt{21} )} }$

$=\frac{12\left( \sqrt{10} -\sqrt{7} -\sqrt{3} \right) }{-2\sqrt{21} }$

$=\frac{-6\left( \sqrt{10} -\sqrt{7} -\sqrt{3} \right) }{\sqrt{21} }$

$=\frac{-6\left( \sqrt{10} -\sqrt{7} -\sqrt{3} \right) }{\sqrt{21} } \times\frac{\sqrt{21} }{\sqrt{21} }$

$=\frac{-6\sqrt{21} \left( \sqrt{10} -\sqrt{7} -\sqrt{3} \right) }{21 }$

$=\frac{-6\sqrt{210} +6\sqrt{147} +6\sqrt{63} }{21 }$

$=\frac{6\sqrt{147} +6\sqrt{63}-6\sqrt{210} }{21 }$

<u><em>Remark</em></u>:

You can simplify moreover if you want to.

5 0

2 years ago

FIND THE AREA OF THE (RECTANGLE)

Thepotemich [5.8K]

Answer:

374

Step-by-step explanation:

A = l×w

A=17×22

A=374

4 0

3 years ago

Could someone help me understand this?

larisa86 [58]

Answer:

8 < x < 40

Step-by-step explanation:

x − 8 must be more than 0, but it can't be greater than 32.

0 < x − 8 < 32

8 < x < 40

A more precise answer would require law of cosines and calculus.

5 0

3 years ago

How do you solve this

Trava [24]

1. reduce the fraction and subtract the exponents

(5x^7y^2)/2

3 0

3 years ago

Aria is trying to build up her savings. Which are the three most helpful questions she should ask herself before making a purcha

Jet001 [13]

Is it necessary
Can I get it cheaper elsewhere
Will it last a while

These are just 3 I came up with. I do not know if they are what your teacher would have put.

8 0

3 years ago